* {
    padding: 0;
    margin: 0;
}

a {
    text-decoration: none;
}

/* 中心区域 */
.core {
    position: relative;
}

.core img {
    width: 1600px;
}

/* 白色正方形区域 */
.core .zheng {
    width: 500px;
    height: 540px;
    background-color: white;
    position: absolute;
    left: 50%;
    margin-left: 72px;
    margin-top: -627px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.core .xiaozheng {
    width: 400px;
    height: 500px;
}

/* 头部空白区域 */
.core .blank {
    width: 400px;
    height: 80px;
}

/* 登录总区域 */
.core .register {
    width: 100%;
    height: 290px;
    position: relative;
    /* background-color: brown; */
}

/* 密码短信登录头部区域 */
.PShort {
    width: 100%;
    height: 50px;
    /* background-color: chartreuse; */
    display: flex;
    justify-content: space-between;
}

.core .PShort .PWD {
    width: 47%;
    height: 100%;
    /* background-color: cyan; */
    text-align: center;
    line-height: 50px;
}

.core .PShort .short {
    width: 47%;
    height: 100%;
    /* background-color: orangered; */
    text-align: center;
    line-height: 50px;
}

.core .PShort a {
    color: black;
    font-size: 12px;
}

/* 表单区域 */
.core .register form {
    width: 400px;
    height: 220px;
    /* background-color: green; */
}

.core .register form input {
    min-width: 398px;
    height: 42px;
    border: 1px solid gray;
    margin-top: 15px;
    /* 去掉轮廓 */
    outline: none;
}

.core .register form .sing_in {
    color: white;
    background-color: black;
    cursor: pointer;
    margin-top: 20px;
}

/* 账号密码登录区域 */
.core .zhanghao {
    /* display: none; */
    position: absolute;

}

/* 短信快捷登录区域 */
.core .duanxin {
    /* display: none; */
    position: absolute;

}

/* 图片验证码 */
.core .duanxin .yanzhengma {
    width: 398px;
    height: 42px;
    background-color: blue;
}

.core .register .duanxin form .duan {
    width: 100px;
    height: 42px;
    background-color: black;
    position: absolute;
    right: 0;
    top: 134px;
    color: white;
    font-size: 14px;
    text-align: center;
    line-height: 42px;
}

/* 其他方式登录区域 */
.core .other {
    width: 100%;
    height: 70px;
    /* background-color: deeppink; */
    margin-top: 20px;
}

.core .other fieldset {
    font-size: 12px;
    text-align: center;
    border-right: 0;
    border-bottom: 0;
    border-left: 0;
}

.core .other .weitou {
    width: 400px;
    height: 45px;
    /* background-color: aqua; */
    text-align: center;
    line-height: 45px;
    margin-top: 5px;
}

.core .other .weitou a {
    font-size: 30px;
    color: gray;
}

.core .reg {
    width: 400px;
    height: 20px;
    /* background-color: springgreen; */
    text-align: center;
    line-height: 20px;
    margin-top: 20px;
}

.core .reg a {
    font-size: 10px;
    color: black;

}